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Characterization of fluid-solid coupled motion of corn seed bends in fluid seeding

Published: 19 June 2024 Publication History

Abstract

In order to improve the conveying efficiency of corn seeds in the bend pipe of a fluid seeder and to analyze the source of energy loss, the flow characteristics of corn grains in the bend pipe were simulated and analyzed with the help of the coupled method of computational fluid dynamics (CFD) and discrete element (DEM). The results show that: the numerical model can predict the conveying performance of the lifting pipe as well as the optimal flow rate and feeding volume; when the feeding volume exceeds a certain threshold or the flow rate is too low, the pipe is prone to buildup clogging at the elbow, but it has little effect on the velocity distribution law of the corn inside the pipe; the collision between the corn grains and collision between the grains and the wall will cause the energy loss inside the pipe, and the former is the main source of the loss. The simulation results provide some theoretical reference for the pipe design of corn fluid seeder.

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    ICMML '23: Proceedings of the International Conference on Mathematics and Machine Learning
    November 2023
    327 pages
    ISBN:9798400716973
    DOI:10.1145/3653724
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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    Published: 19 June 2024

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